220734775 has 12 divisors (see below), whose sum is σ = 280388304. Its totient is φ = 172280000.

The previous prime is 220734743. The next prime is 220734791. The reversal of 220734775 is 577437022.

It is not a de Polignac number, because 220734775 - 2⁵ = 220734743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106651 + ... + 108700.

It is an arithmetic number, because the mean of its divisors is an integer number (23365692).

Almost surely, 2^220734775 is an apocalyptic number.

220734775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220734775 is a deficient number, since it is larger than the sum of its proper divisors (59653529).

220734775 is a wasteful number, since it uses less digits than its factorization.

220734775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215402 (or 215397 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 220734775 is about 14857.1455872250. The cubic root of 220734775 is about 604.3524022418.

The spelling of 220734775 in words is "two hundred twenty million, seven hundred thirty-four thousand, seven hundred seventy-five".